10-year Fluidstack/Google HPC hosting lease at Barber Lake
Company: Cipher Mining - Project: Barber Lake Facility
What the later record shows
Not a promise: a reported event · happened September 24, 2025
The claim reports a lease that had already been signed. The lease with Fluidstack was entered into in September 2025 (dated September 24, 2025) and later amended and restated. The exact date of the expanded $1.73B backstop is not given.
“In September 2025, the Company, through its wholly-owned subsidiary Cipher Barber Lake LLC, entered into a lease with Fluidstack for the development, construction, and lease of an HPC data center facility”
2026-05-04 · Cipher Mining 10-Q filed 2026-05-05 View cached copy (2026-08-31)Live source ↗
Checked October 10, 2026 against filings, releases and reporting published after the claim was made. Quotes are verbatim from the linked documents.
The claim, verbatim
Executed 10-year base lease agreement with Fluidstack for HPC hosting at Barber Lake with two 5-year extension options; Google to provide backstop for up to $1.73 billion of Fluidstack's lease obligations
Source (primary)
cipher-mining 8-K exhibit (cipherdigital_businessup.htm) (SEC EDGAR (8-K Ex), press_release)
View cached copy (2026-09-13)Live source ↗
Quote: “10-year base lease agreement with Fluidstack with two 5-year extension options... Google to provide backstop for up to $1.73Bn of Fluidstack's lease obligations”
How we checked this
Checked on October 11, 2026. The cited source supports every part of this claim.
The Barber Lake transaction overview describes a 10-year HPC hosting lease with Fluidstack that has two 5-year extension options, with a Google backstop of up to $1.73Bn. The document also refers to the Fluidstack/Google lease as executed.
Confirmed in the source:
- Cipher has an executed 10-year base lease agreement with Fluidstack for HPC hosting
- The Fluidstack lease is for the Barber Lake site
- The Fluidstack lease has two 5-year extension options
- Google is to provide a backstop for up to $1.73 billion of Fluidstack's lease obligations
What we did: Read our cached copy of SEC EDGAR (8-K Ex) (https://www.sec.gov/Archives/edgar/data/1819989/000181998926000007/cipherdigital_businessup.htm) in full (25,132 characters, retrieved September 13, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms cipher-mining 8-K exhibit (cipherdigital_businessup.htm)
Quote: “10-year base lease agreement with Fluidstack with two 5-year extension options... Google to provide backstop for up to $1.73Bn of Fluidstack's lease obligations”